Chemicals and Drugs

Nucleic Acid Heteroduplexes

Double-stranded nucleic acid molecules (DNA-DNA or DNA-RNA) which contain regions of nucleotide mismatches (non-complementary). In vivo, these heteroduplexes can result from mutation or genetic recombination; in vitro, they are formed by nucleic acid hybridization. Electron microscopic analysis of the resulting heteroduplexes facilitates the mapping of regions of base sequence homology of nucleic acids.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Double-stranded nucleic acid molecules (DNA-DNA or DNA-RNA) which contain regions of nucleotide mismatches (non-complementary). In vivo, these heteroduplexes can result from mutation or genetic recombination; in vitro, they are formed by nucleic acid hybridization. Electron microscopic analysis of the resulting heteroduplexes facilitates the mapping of regions of base sequence homology of nucleic acids.

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Synonyms

4 entry terms
  • Heteroduplexes, Nucleic Acid
  • Acid Heteroduplexes, Nucleic
  • Heteroduplex DNA
  • DNA, Heteroduplex

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Aspects Covered

30 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analysis, antagonists & inhibitors, biosynthesis, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, deficiency, drug effects, economics, genetics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, physiology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, ultrastructure, urine.

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Indexing Annotation

coord with specific DNA or RNA or both (IM)

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History Note

80

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Previous Indexing

  • Base Sequence (1971-1979)
  • DNA (1966-1979)
  • Mutation (1966-1979)
  • Nucleic Acid Hybridization (1971-1979)
  • RNA (1966-1979)
  • Recombination, Genetic (1968-1979)
  • specific DNA (1966-1979)
  • specific RNA (1966-1979)

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References

  1. National Library of Medicine. Nucleic Acid Heteroduplexes. Medical Subject Headings (MeSH). 2026. Unique ID D009692. http://id.nlm.nih.gov/mesh/2026/D009692
  2. Nucleic Acid Heteroduplexes. In: Wikipedia. https://en.wikipedia.org/wiki/Heteroduplex
  3. Nucleic Acid Heteroduplexes. In: Wikidata. https://www.wikidata.org/wiki/Q408140